package com.loop.bio;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * @author zhangxiaolu
 * @since 2023-08-31 21:48
 */
public class BIOServer {
    public static void main(String[] args) throws IOException {
        // 线程池机制

        // 思路
        // 1.创建一个线程池
        // 2.如果有客户端连接，就创建一个线程，与之通讯（单独写一个方法）

        ExecutorService newCachedThreadPool = Executors.newCachedThreadPool();
        ServerSocket serverSocket = new ServerSocket(6666);
        System.out.println("服务器启动了");
        while (true) {
            final Socket socket = serverSocket.accept();
            System.out.println("连接到一个客户端");
            newCachedThreadPool.execute(() -> {// 重写run()
                // 可以和客户端通讯
                handler(socket);
            });
        }
    }

    // 编写要给handler方法，和客户端通讯
    public static void handler(Socket socket) {
        // 通过socket 获取输入流
        try {
            System.out.println("线程信息 id =" + Thread.currentThread().getId() + "名字 = " + Thread.currentThread().getName());
            byte[] bytes = new byte[1024];
            InputStream inputStream = socket.getInputStream();
            // 循环读取客户端发送的数据
            while (true) {
                System.out.println("线程信息 id =" + Thread.currentThread().getId() + "名字 = " + Thread.currentThread().getName());
                int read = inputStream.read(bytes);
                if (read != -1) {
                    System.out.println(new String(bytes,0, read));// 输出客户端发送的数据
                } else {
                    break;
                }
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            System.out.println("关闭和client的连接");
            try {
                socket.close();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

    }
}
